A pyramid with an n-sided base will have n + 1 vertices, n + 1 faces, and 2n edges.
7 vertices
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7 vertices
A triangular pyramid has 4 vertices. A retangular and square pyramid has 5 vertices. A pentagonal pyramid has 6 vertices. A hexagonal pyramid has 7 vertices.
A hexagon is a six sided figure so, a hexagonal base has six triangular sides. Each triangle has three vertices, so such a pyramid has 18 vertices
A hexagonal pyramid has 12 edges, 7 vertices and 7 faces.
Well a hexagon has 6 vertices, and making it a pyramid adds one. Answer is 7 if I'm not mistaking.